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Added comments for insertion sort in java #1

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Added comments for insertion sort in java #1

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16 changes: 8 additions & 8 deletions code/sorting/src/insertion_sort/insertion_sort.java
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
// Part of Cosmos by OpenGenus Foundation
class InsertionSort {
void sort(int arr[]) {
class InsertionSort {
void sort(int arr[]) { // sort() performs the insertion sort on the array which is passed as argument from main()
for (int i = 0; i < arr.length; ++i) {
for (int j = i; j > 0 && arr[j - 1] > arr[j]; j--) {
for (int j = i; j > 0 && arr[j - 1] > arr[j]; j--) { // swapping of elements if j-1th element is greater than jth element
int temp = arr[j];
arr[j] = arr[j - 1];
arr[j - 1] = temp;
Expand All @@ -12,10 +12,10 @@ void sort(int arr[]) {

// Driver method
public static void main(String args[]) {
int arr[] = {8, 2, 111, 3, 15, 61, 17};
System.out.println("Before: " + Arrays.toString(arr));
InsertionSort ob = new InsertionSort();
ob.sort(arr);
System.out.println("After:" + Arrays.toString(arr));
int arr[] = {8, 2, 111, 3, 15, 61, 17}; // array to be sorted
System.out.println("Before: " + Arrays.toString(arr)); // printing array before sorting
InsertionSort ob = new InsertionSort(); // object of class InsertionSort is created
ob.sort(arr); // arr is passed as argument to the function sort() is called
System.out.println("After:" + Arrays.toString(arr)); // printing array after insertion sort is applied
}
}